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http://dx.doi.org/10.7843/kgs.2018.34.8.27

Influence of Saturation and Soil Density on the Ground Subsidence Using Distinct Element Method  

Kim, Yeonho (Dept. of Civil & Environmental Eng., Dankook Univ.)
Kim, Hyunbin (Dept. of Civil & Environmental Eng., Dankook Univ.)
Park, Seong-Wan (Dept. of Civil & Environmental Eng., Dankook Univ.)
Publication Information
Journal of the Korean Geotechnical Society / v.34, no.8, 2018 , pp. 27-36 More about this Journal
Abstract
The collapse behavior of ground subsidence caused by continuous loss of particles depends on the saturated condition and density of the ground. In this study, types of ground subsidence were classified based on the saturated condition and each type was performed on the different relative density to analyze the influence factors on the collapse behavior by distinct element method. According to analysis results, the relatively small amount of settlement occurred on the dense ground and a cavity was created under dense-unsaturated ground. In contrast, loose ground showed the large amount of settlement and collapsed immediately without cavity formation even if the unsaturated ground was simulated. The results demonstrated that because the relative density has influence on the mechanical interlocking and saturated condition has influence on the inter-particle force, these are important factors to change the collapse behavior.
Keywords
Ground subsidence; Soil erosion; Distinct Element Method;
Citations & Related Records
Times Cited By KSCI : 5  (Citation Analysis)
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